Model
BMW 4 Series
Variant
M4 Competition 395 KW
Years
2020-now
Fuel
Petrol
Engine Size
2998
ECU Type
Bosch MG1C049
Celtic Tuning's economy software is designed to improve fuel efficiency during normal daily driving, specifically under part-throttle conditions.
It delivers a smoother power curve and improved fuel economy, though actual savings and performance gains will depend on factors such as driving style, road conditions, and vehicle load.
| Original | Modified | Difference | |
|---|---|---|---|
395KW | 395KW | +0KW | |
649Nm | 649Nm | +0Nm |